error: this let-binding has unit value. Consider omitting `let _x =` --> $DIR/let_unit.rs:14:5 | 14 | let _x = println!("x"); | ^^^^^^^^^^^^^^^^^^^^^^^ | note: lint level defined here --> $DIR/let_unit.rs:4:9 | 4 | #![deny(let_unit_value)] | ^^^^^^^^^^^^^^ error: this let-binding has unit value. Consider omitting `let _a =` --> $DIR/let_unit.rs:18:9 | 18 | let _a = (); | ^^^^^^^^^^^^ error: aborting due to 2 previous errors